####018002587#### FNUS22 KWNS 291917 FWDDY2 Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0216 PM CDT Sun Mar 29 2026 Valid 301200Z - 311200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN WYOMING... ...Upper Colorado River Plateau...Wyoming and central/northern High Plains... A westerly flow regime associated with a deamplifying ridge will continue into D2/Monday across the Intermountain West while lee surface troughing evolves across the northern and central Great Plains. A concentrated corridor of 20-25 mph winds and RH between 15-20% will support critical fire weather conditions across southeastern WY. Downslope flow of 10-15 mph (locally 20 mph) across the central and southern High Plains and relative humidity as low as 10% across southeastern CO, southwestern KS and the OK/TX Panhandles will support elevated fire weather conditions. A slight expansion of the eastern extent of the existing Elevated Highlights was made given latest model guidance. ...Eastern Arizona and western New Mexico... A subtle mid-level wave will move into the Lower Colorado River Basin D2/Monday. Mid-level moisture, daytime instability and approach of the mid-level perturbation will promote isolated thunderstorms across eastern AZ and western NM. A dry, well mixed boundary layer will limit precipitation and increase ignition potential. The isolated dry thunderstorm threat was expanded southward based on latest forecast guidance. ..Williams.. 03/29/2026 .PREV DISCUSSION... /ISSUED 0208 AM CDT Sun Mar 29 2026/ ...Synopsis... An upper ridge will persist across the CONUS tomorrow (Monday). An embedded impulse will traverse the northern Rockies, supporting the development and eastward progression of a surface low over the northern Plains. The combination of gradient and dry downslope flow across the central Rockies into the High Plains will yield Elevated conditions by Monday afternoon. At least 15 mph sustained westerly surface winds will coincide with 15-20 percent RH for several hours. Wind will be regionally stronger across much of Wyoming (i.e. 25 mph in several locales), suggesting the need for Critical highlights. Isolated dry thunderstorms will also be possible across portions of central Arizona into far western New Mexico, where the approach of a mid-level impulse will support high-based thunderstorm development atop a mixed boundary layer and dry fuels. ...Please see www.spc.noaa.gov/fire for graphic product... $$